KR101613053B1

KR101613053B1 - SMART Height-adjustable desk

Info

Publication number: KR101613053B1
Application number: KR1020150181012A
Authority: KR
Inventors: 김은하; 소진
Original assignee: 주식회사 디자인칼라스
Priority date: 2015-01-26
Filing date: 2015-12-17
Publication date: 2016-04-15

Abstract

The present invention relates to a smart height-adjustable desk where: the height of the work plate can be easily adjusted to a standing working height and a sitting working height as needed by the user; a decrease in blood circulation and arthritis which can be caused when the user sits for a long time to work can be prevented; occupational diseases related to sitting at work can be prevented; the noise made while the height of the work plate is being adjusted; the movement of the desk is blocked when both leg units move differently; and the stability is increased. The desk of the present invention comprises: a work plate placed on the top of a desk frame; leg units combined with both sides of the desk frame; an elevation driving unit placed on the desk frame on the top of both leg units to elevate and move the leg units; an elevation control unit for controlling the operation of the elevation driving unit; and a control button for inputting a control signal of the user into the elevation control unit. The height of the work plate is adjusted to a standing working height and a sitting working height as needed by the user. A decrease in blood circulation and arthritis which can be caused when the user sits for a long time to work can be prevented. Thus, an occupational disease due to the working by sitting can be prevented.

Description

SMART Height-adjustable desk}

The present invention relates to a smart height adjusting desk, and more particularly, to a smart height adjusting desk which can easily adjust a height of a work plate to a height of a standing work and a height of a sitting work according to a user's need, In order to prevent the occurrence of occupational diseases caused by seated state by minimizing joint inflammation, it is necessary to minimize the noise in the process of adjusting the height of the work plate and to increase the stability by preventing the movement of the legs during operation. It is for the purpose of.

Generally, the desk has a working plate of a certain height so that the user can use it for the purpose of office work, assembly work, meeting, and the like.

Such a desk is composed of a working plate having a plate-shaped working plate and a desk base portion for supporting the working plate at a certain height.

As described above, the work using the desk having the height of the work plate of a certain height is performed while sitting on the chair.

However, when the conventional desk is used to sit for a long time, the blood circulation of the lower body is not smooth, and the pressure on the abdomen and hips is prolonged for a long time to cause occupational diseases such as incomplete digestion and urinary-related diseases will be.

Occupational diseases caused by long-term sitting work are increasing as work time increases with the development of industrialization and informatization.

Korean Patent Publication No. 10-2004-0052690

Accordingly, when the conventional desk as described above is operated for a long time, the blood circulation of the lower body is not smooth, and the pressure on the abdomen and hips is prolonged for a long time, which causes occupational diseases such as incomplete digestion and urological diseases And an occupational disease caused by a long sitting work is increased.

That is, according to the present invention, there is provided a desk comprising: a working plate provided on an upper portion of a desk frame; a leg portion connected to both sides of the desk frame; an elevation driving portion provided on an upper desk frame of the both leg portions, An elevation control unit for controlling the operation of the elevation driving unit, and an operation button for inputting a user's operation signal to the elevation control unit.

And the desk frame is composed of a leg frame which is provided on both sides of the lower portion of the work plate and is adjustable in width by a connecting frame.

And a leg which is provided on the lower side of the fixed leg and protruding from the lower side of the driving housing of the elevating driving part and has a supporting leg to which the foot is attached to the lower end, a connecting leg provided between the fixed leg and the supporting leg, A leg cap connected to the upper end of the connecting leg, and a lubrication pad provided on the outer surface of the lower end of the fixing leg and the connecting leg.

And a lifting / lowering motor, wherein the lifting and lowering driving unit includes a driving housing hinged to an outermost side of a leg frame, a lifting motor fixed to the driving housing, a lifting socket portion axially coupled to the lifting motor, A connection lifting nut rod whose upper end is screwed to the lifting screw shaft and whose lower end outer surface is restrained at the lower end of the connecting leg, a spline coupling means at the lower portion of the connecting lifting nut rod, And a support lifting and lowering nut rod fixedly connected to the lower end of the support leg.

The elevator controller includes a controller housing fixed to the desk frame, a power source provided in the controller housing, a lift controller for controlling the elevation motor operation of the elevation driving unit, a motor operation sensing unit for sensing the operation amount of each elevation motor, And an operation comparator for comparing the operation detection amount of the sensing unit to cause the elevating motor to input an operation stop signal to the elevator controller during an unbalanced operation.

And a rising operation switch and a falling operation switch for causing the controller to operate the elevation driving unit to the lowest position and to set the initial operation position by simultaneously operating the elevating and lowering operations of the operation buttons .

The present invention provides a desk frame comprising a working plate provided on an upper portion of a desk frame, a leg portion connected to both sides of the desk frame, an elevation driving portion provided on the upper desk frame of the both legs to elevate and lower the leg portion, And an operation button for inputting an operation signal of a user to the elevation control unit. By adjusting the height of the work plate to the standing operation height and the seating operation height according to the user's needs, Thereby preventing the induction of occupational diseases caused by the sitting state operation.

In addition, since the desk frame is composed of a leg frame which is provided at both sides of the lower portion of the work plate and is coupled to the connecting frame by a width adjustable, the size of the work board can be easily changed according to the user's needs.

In addition, the leg portion may be provided at a lower portion of a fixed leg and a fixed leg protruding from a lower outer side of the driving housing of the elevation driving portion, and a supporting leg to which a foot is coupled at a lower end, a connecting leg provided between the fixed leg and the supporting leg, And a lubrication pad provided on the outer surface of the lower end of the connecting leg, thereby having the effect of maintaining the lateral bending force of the leg portion by the connecting legs The leg cap and the lubrication pad minimize the flow of each leg and smooth up and down the vertical lift.

The lifting and lowering driving unit includes a driving housing hinged to an outermost side of the leg frame, a lifting motor fixed to the driving housing, a lifting socket part axially coupled to the lifting motor, A coupling lifting and lowering nut rod whose upper end is screwed to the elevating screw shaft and whose lower end outer side is constrained to the lower end of the connecting leg by a spline coupling means at the lower part of the connecting and lifting nut rod, And the lower end is fixedly coupled to the lower end of the support leg, whereby the length of the connecting and lifting nut rod and the support lifting and lowering nut rod in the state of being sequentially engaged by the lifting screw shaft is reduced or increased, It has the effect of being operated in a balanced manner.

The elevating control unit may include a controller housing fixed to the desk frame, a power supply unit provided in the controller housing, a lift controller for controlling the elevation motor operation of the elevation driving unit, a motor operation sensing unit for sensing the operation amount of each elevation motor, And the operation detecting section compares the detected amount of motion of the motion detecting section to cause the elevating motor to input an operation stop signal to the elevating controller during the unbalanced operation. Thus, the operation of the elevating motor by the controller can be clearly controlled, The motor operation sensing unit and the operation comparator sense unit detects an unbalanced lifting and lowering of the legs, thereby preventing a safety accident such as desk overturn caused by unbalanced lifting of the legs.

Further, the elevating operation switch and the lowering operation switch are constituted by the elevating operation switch and the downward operation switch, respectively, for causing the elevator driving part to operate at the lowest position by simultaneous operation of the elevating and lowering operation buttons of the operation button, There is an effect that the setting operation can be clearly performed without a separate setting switch and the user's operation signal is clearly input.

1 is an exploded perspective view showing an embodiment of the present invention.
2 is a partially exploded perspective view showing an embodiment of the present invention.
3 is an exploded perspective view of a leg according to an embodiment of the present invention.
FIG. 4 is a cross-sectional view of one side of a leg according to an embodiment of the present invention
FIG. 5 is a plan view showing a state in which the driving housing,
FIG. 6 is an enlarged cross-sectional view of an engaged state of one leg according to an embodiment of the present invention
FIG. 7 is a cross-sectional view of a connecting leg and a connecting lifting nut rod according to an embodiment of the present invention,
8 is a cross-sectional view of a lower portion of a supporting lifting nut bar shown in an embodiment of the present invention
9 is a cross-sectional view of an upper part of a leg according to an embodiment of the present invention
FIG. 10 is a cross-sectional view of a connection structure of a connecting lifting nut rod and a supporting lifting nut rod according to an embodiment of the present invention
11 is a cross-sectional view of a connection lifting nut rod according to an embodiment of the present invention,
12 is a block diagram of a controller housing according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

According to the present invention, the height of the work plate can be easily adjusted to the rising height and the seating height according to the user's needs, thereby preventing the blood circulation and the inflammation caused by the user from being seated for a long time, To prevent the occurrence of occupational diseases, to minimize the noise in the process of adjusting the height of the work plate, and to prevent the operation when the elevation of both legs is different, thereby enhancing the stability.

That is, the present invention is characterized in that the present invention comprises a working plate 120 provided on an upper portion of a desk frame 110, a leg 210 coupled to both sides of the desk frame 110, An elevation driving unit provided on the elevation control unit 110 for elevating and lowering the leg 210, an elevation control unit for controlling the operation of the elevation driving unit, and an operation button 510 for inputting a user's operation signal to the elevation control unit .

The desk frame 110 includes leg frames 112 which are provided on both sides of the lower portion of the work plate 120 and are coupled by a connection frame 111 so as to be adjustable in width.

The leg frame 112 is formed of a wire rod so that it can be engaged with the work plate 120 on both sides and is formed in a shape of a " C "

The connection frame 111 is formed so that a "C" type wire rod is coupled to both sides of the coupling portion of the leg frame 112 formed in a "C"

The leg portion 210 is provided at a lower side of the fixed leg 211 and a fixed leg 211 formed as a rectangular tubular body protruding from the lower outside of the driving housing 310 of the elevation driving portion, A supporting leg 212 formed of a rectangular tube and a connecting leg 213 formed between the fixing leg 211 and the supporting leg 212 and formed of a rectangular tubular body, A leg cap 214 coupled to the upper end of the connecting leg 213 and a lubrication pad 215 provided on the outer surface of the lower end of the connecting leg 213.

The leg cap 214 and the lubrication pad 215 advantageously support the respective legs accommodated to minimize flow and noise.

The lubrication pad 215 is formed of a pad portion formed with an insert protrusion 362c on the inner surface thereof and fitted to a coupling hole formed in a leg member and impregnated with lubricating oil on the outer surface.

The lifting and lowering driving unit includes a driving housing 310 hinged to the outermost side of the leg frame 112, a lifting motor 320 fixed to the driving housing 310, The upper end of the lifting screw shaft 340 is connected to the lifting screw shaft 340 and the lower end of the lifting screw shaft 340 is connected to the lower end of the lifting and lowering socket part 330. [ A connection lifting nut rod 350 constrained to the lifting screw rod 340 by a spline coupling means at a lower portion of the connection lifting nut rod 350 and having an upper end screwed to the lifting screw shaft 340, And a supporting lifting nut rod 360 which is fixedly coupled to the supporting nut 360.

The driving housing 310 of the elevation driving unit is formed in a rectangular box shape and both sides of the center side end of the working plate 120 are hinged to the leg frame 112 via the hinge pin 312, And the drive housing 310 is coupled to the hinge pin 312 by a restraining pin 313 which is coupled to the opposite side of the hinge pin 312 of the drive housing 310 at both sides of the leg frame 112. [ To the leg frame (112) to be limited to rotation.

The hinge pin 312 and the restraining pin 313 are engaged with the leg frame 112 via the hinge buffer ring 312a and the restraint cushion ring 313a in order to reduce vibration during the operation of the lifting motor 320 .

Meanwhile, in the ascending and descending operation of the both legs 210, the restraint pin 313 may be provided with a pair of legs 210, The torque cutting grooves 313b can be formed.

A screw retention portion 311 for supporting the upper end of the lifting screw shaft 340 is formed on the upper side of the fixing leg 211 of the driving housing 310.

The elevating motor 320 of the elevation driving unit is fixedly installed inside the driving housing 310.

In the elevation driving unit, the elevating socket unit 330 is electromagnetically coupled to the elevating motor 320 and is angularly coupled to the elevating screw shaft 340 to rotate the elevating screw shaft 340.

The ascending socket portion 330 is coupled to the connecting angular shaft 341 formed at the upper end of the elevating screw shaft 340 and is coupled to the end of the connecting angular shaft 341 by a binding nut 341a And a resin socket groove 331 formed by synthetic resin for absorbing vibrations while vertically sliding the socket angular axis 332 and the socket angular axis 332 so as to be vertically slidable.

The elevating screw shaft 340 of the elevation driving unit is formed with a screw groove on the whole of the barrel and a connecting angular shaft 341 which is coupled to the elevating socket part 330 at the upper end. And a coupling nut 341a is provided.

The lifting screw shaft 340 is coupled to the lower end of the supporting lifting nut rod 360 to increase the rigidity of the supporting lifting nut rod 360 and to screw the lifting screw shaft 340 to improve the supporting rigidity of the lifting screw shaft 340 And a supporting rod 342 is provided.

The connecting lifting nut rod 350 of the lifting and lowering driving part is formed of a hollow rod having a spline groove 371 formed on the inner surface thereof.

And a connecting nut portion 351 screwed to the elevating screw shaft 340 at the upper end of the connecting and lifting nut rod 350 to provide the leg portion 210 with upward and downward force.

A connection rod fixing member 352 is coupled to the lower end of the connection leg 213 and a lower end of the connection rod fixing member 352 is connected to the lower end of the connection lifting nut rod 350 And an inner wall support protrusion 352a is formed between the outer surface of the supporting support lifting nut rod 360 and the inner support protrusion 352a.

The support lifting nut rod 360 of the lifting and lowering driving unit is provided with a support nut portion 361 which is screwed on the upper end of the lifting screw shaft 340 and which imparts upward and downward force to the leg portion 210.

The support nut portion 361 is coupled to the connection lifting nut rod 350 by spline coupling means.

The spline coupling means is formed with a spline protrusion 372 formed on the outer surface of the support nut portion 361 and a spline groove 371 formed on the inner surface of the connection lifting nut rod 350 corresponding thereto.

The lower end of the support lifting nut rod 360 is fixedly coupled to the lower end of the support leg 212.

A support finishing cap 362 coupled to the support leg 212 is provided at the lower end of the support lifting nut rod 360.

The support finishing cap 362 is fitted in the lower end of the support lifting nut rod 360 and is provided with a finishing engagement protrusion 362a which is engaged with a binding hole formed in the support lifting nut rod 360, A finish claw 362b which is coupled to a key engagement hole formed in the center of the claw 362 and supports the finish claw 362 to be firmly supported by the finish claw 362a coupled to the claw, Respectively.

The supporting finishing cap 362 is provided with two fitting protrusions 362c to be fitted to the lower ends of the supporting legs 212 and a supporting piece hole 362d to which the through- Respectively.

The elevation control unit includes a controller housing 410 fixed to the desk frame 110, a power supply unit 420 provided in the controller housing, a lift controller 430 for controlling the operation of the elevation motor 320 of the elevation driving unit, A motor operation detecting unit 441 for detecting an operation amount of the elevating motor 320 and a control unit 430 for comparing the operation detection amount of the both side motor operation detecting unit 441 to determine whether the both side elevating motor 320 is in the unbalanced operation, And an operation comparator 442 for inputting an operation stop signal to the operation comparator 442.

The controller housing 410 of the elevation control unit is formed in a box shape and fixed to the lower portion of the work plate 120 at the central portion side of the desk frame 110.

The power supply unit 420 of the elevation control unit converts AC power supplied from the outside into DC power and supplies the DC power to the elevation controller 430 and the elevation motor 320.

The elevation controller 430 of the elevation controller controls the elevation motor 320 in accordance with the operation signal inputted from the operation unit and the operation of the elevation motor 320 according to the user's operation, .

The motor operation sensing unit 441 of the elevation control unit senses an operation sensing amount of the elevation motor 320 operated by the elevation controller 430. The sensing of the operation sensing amount is performed by a power supply To sense the operating load or operating current.

The motor operation sensing unit 441 senses an operation sensing amount of the elevating motor 320 operated by the elevating controller 430. The sensing of the operation sensing amount is performed to sense the rotation speed of the elevating motor 320 You can do it.

The operation comparison unit 442 of the elevation control unit compares and detects operation detection amounts input from the motor operation detection unit 441 provided for each lift motor 320, The elevation motor 320 causes the elevation controller 430 to input an operation stop signal during the unbalanced operation so that the elevation motor 320 is stopped.

On the other hand, the operation button 510 transmits an electric operation signal to the elevation control unit by wire, and the operation is easily performed on the lower side of the front surface of the work plate 120. [

The operation button 510 can be implemented by a wireless remote controller so that an electric operation signal can be transmitted to the elevation control unit wirelessly.

Hereinafter, the operation of the present invention will be described.

A desk frame 110 provided on the desk frame 110 and legs 210 connected to both sides of the desk frame 110; A lift control unit for controlling the operation of the elevation driving unit and an operation button 510 for inputting a user's operation signal to the elevation controller 430, The height of the work plate 120 can be easily adjusted to the rising height and the seating height according to the user's needs.

Therefore, the user who uses the desk according to the present invention can prevent blood circulation and joint inflammation from being caused by a long sitting operation, thereby preventing occupational diseases caused by sitting work.

In addition, in the practice of the present invention, the desk frame 110 may be formed as a leg frame 112 which is provided on both sides of the lower portion of the work plate 120 and is adjustable in width by a connecting frame 111 The length of the desk frame 110 may be adjusted according to the needs of the user to easily change the size of the work board 120 according to the needs of the user.

In addition, in the practice of the present invention, the leg frame 112 is formed in a shape of a " C "shape on the side of the coupling portion with the connecting frame 111, and the connecting frame 111 is formed into a " Shaped frame member 112 on both sides so as to be coupled to the inside of the engaging portion of the leg frame 112 and the engaging portion of the leg frame 112 whose length is manipulated by the connecting frame 111, And is formed smoothly by the connection frame 111 formed of the "C " -shaped wire.

In the embodiment of the present invention, when the leg portion 210 is formed as a fixed leg 211 formed as a rectangular tubular member protruding from the lower outside of the driving housing 310, 211 are firmly coupled to the drive housing 310 to improve the durability of the support.

When the fixing legs 211 and the supporting legs 212 are coupled to each other by the connecting legs 213, when the legs 210 are elevated and lowered, The state is stable.

And a leg cap 214 coupled to the upper end of the support leg 212 and the connection leg 213. The lower end of the fixing leg 211 and the connection leg 213 is provided with a lubrication pad 215 , The overlapping legs are advantageously brought into contact with each other to be slidably operated, so that the shaking motion is minimized and the lubrication is performed by the lubrication pad 215, so that the operation is clearly performed.

The lubrication oil lubricated on the outer surface of the leg is scraped by the inner wall of the leg cap 214 by the lubrication pad 215 so that the lubricant remaining on the outer surface of the leg sliding protruding is minimized.

In addition, in the practice of the present invention, the lifting and lowering driving unit includes a lifting and lowering socket unit 330 axially coupled to the lifting motor 320, a lifting screw shaft 340 having an upper end restrained to the lifting and lowering socket unit 330, A connection lifting nut rod 350 whose upper end is screwed to the screw shaft 340 and whose lower end outer surface is constrained to the lower end of the connection leg 213, And a supporting lifting nut rod 360 whose upper end is screwed to the lifting screw shaft 340 and whose lower end is fixedly connected to the lower end of the supporting leg 212, The connecting legs 213 and the supporting legs 212 are equally shrunk and expanded by the lifting nut rod 350 and the supporting lifting and lowering nut rod 360 so that the lifting and lowering operation is made clear and smooth.

The driving housing 310 is formed in a rectangular box shape and both sides of the center side end of the working plate 120 are folded inward by a hinge pin 312 fitted to the leg frame 112 The drive housing 310 may be folded toward the center of the work plate 120 to minimize the size of the drive housing 310 when it is circulated and stored.

When the driving housing 310 is provided with the restraining pins 313 on both sides of the fixing legs 211 of the driving housing 310 to restrict the rotation of the driving housing 310 due to external force, State is maintained.

When the hinge pin 312 and the restraint pin 313 are provided with the hinge buffer ring 312a and the restraint buffer ring 313a, the operation of the lifting motor 320 or the operation of the lifting screw shaft 340, The vibration is attenuated through the hinge buffer ring 312a and the restraint buffer ring 313a to minimize noise during the lifting operation.

When the torque cutting groove 313b is formed in the restraining pin 313, when a large amount of biased external force acts on the one leg portion 210 during the ascending and descending operation of the both leg portions 210, The pin 313 is cut around the torque cutting groove 313b and the drive housing 310 is bent toward the center of the work plate 120 to prevent the desk from being rolled over.

When the screw fastening portion 311 for supporting the upper end of the lift screw shaft 340 is provided on the upper side of the fixing leg 211 of the driving housing 310, Is stably supported.

The lifting and lowering socket unit 330 can be vertically slidably operated by a metal socket yoke 332 coupled to the connecting crankshaft 341 of the lifting screw shaft 340 and the socket crankshaft 332 The socket concentric axis 332 is formed in the resin socket groove 331 in the rotating operation of the lifting screw shaft 340 in accordance with the rotation operation of the lifting socket unit 330 331 are rotated so as to be able to slide up and down, and the vibration is absorbed, thereby minimizing noise during operation.

When the screw shaft is formed on the entire elevating screw shaft 340 and the connecting angle shaft 341 is coupled to the elevating socket part 330 at the upper part of the elevating driving part, The lifting and lowering of the lifting and lowering socket 210 is clearly performed, and the connection with the lifting and lowering socket 330 is robust.

The connection lifting nut rod 350 is formed of a hollow rod and the connecting nut 351 is formed at the upper end and the connecting rod fixing member 352 is formed at the lower end outer surface of the connecting rod fixing member 352, The connection nut portion 351 is lifted up and down by the rotation of the elevation screw shaft 340 and the connection leg 213 is connected to the connection rod fixing portion 352 by the connection rod fixing portion 352, And the inner wall supporting protrusion 352a of the connecting rod fixing member 352 is kept constant in the gap with the support lifting nut rod 360 so that the lifting and lowering of the supporting lifting nut rod 360 can be stably performed.

The support nut portion 361 is formed at the upper end of the support lifting nut rod 360 and the lower end of the support nut portion 361 is fixedly coupled to the lower end of the support leg 212, And a spline protrusion 372 engaged with the spline groove 371 formed on the inner wall of the connecting and lifting nut rod 350. In this case, 361 are stably moved up and down without being rotated in the connecting and lifting nut rod 350 by the spline coupling means.

In the embodiment of the present invention, the elevation control unit controls the operation of the controller housing 410 fixed to the desk frame 110, the power supply unit 420 provided in the controller housing, and the elevation motor 320 of the elevation driving unit A motor operation detecting unit 441 for detecting the operation amount of each of the elevating and lowering motors 320 and 420 and a movement detecting amount of the both side motor operation detecting unit 441, When the elevation controller 430 controls the elevation motor 320 to move up and down according to an operation signal of the user, Setting operation, and stop operation.

When the user simultaneously operates the up operation switch 511 and the down operation switch 512 of the operation unit, the elevation controller 430 controls the elevation motor 320 in accordance with the input simultaneous operation signal, (210) is set to the lowest setting position.

The stop operation is performed such that the motor operation detection unit 441 provided corresponding to each of the lift motors 320 detects the operation load or operation current of the lift motor 320 according to the user's lifting / It is determined that the lifting and lowering of the leg portion 210 is performed differently due to the unbalanced operation of the lifting motor 320. When the lifting motor 320 is lifted up unevenly according to the unbalanced lifting of the leg portion 210, The operation is stopped.

Meanwhile, the motion detection by the motor motion detection unit 441 may be performed through the detection of the amount of rotation of the elevation motor 320. [

On the other hand, if the operation button 510 is constituted by a wireless remote controller, the elevation operation of the desk can be easily remotely operated.

110: Desk frame
111: connection frame 112: leg frame
120: Work board
210:
211: stationary leg 212: support leg 212a: footstep 213: connecting leg
214: leg cap 215: lubrication pad
310: drive housing 311: screw retraction part
312: hinge pin 312a: hinge cushion ring
313: restraining pin 313a: restraining cushion ring 313b: torque cutting groove
320: lifting motor 330: lifting socket portion 331: resin socket groove 332:
340: lifting screw shaft 341: connecting angle shaft 341a: binding nut 342:
350: connecting lifting nut rod 351: connecting nut part
352: Connecting rod fixing member 352a: Inner wall supporting projection
360: support lifting nut rod 361: support nut part
362: Support finishing cap
362a: Finishing stopper 362b: Finishing cap
362c: a fitting projection 362d: a supporting piece ball
371: Spline groove 372: Spline projection
410: Controller housing
420:
430: Lift controller
441: Motor motion detection unit 442: Operation comparison operation unit
510: Operation button
511: rising operation switch 512: falling operation switch

Claims

At the desk;
A desk frame 110 provided on the desk frame 110 and legs 210 connected to both sides of the desk frame 110; An elevation driving unit for elevating and lowering the leg portion 210, an elevation control unit for controlling the operation of the elevation driving unit, and an operation button 510 for inputting a user operation signal to the elevation control unit;
The desk frame 110 is composed of a leg frame 112 which is provided at both sides of a lower portion of the work board 120 and is coupled by a connection frame 111 so as to be adjustable in width;
The leg portion 210 is provided at a lower side of the fixed leg 211 and a fixed leg 211 formed as a rectangular tubular member protruding from a lower outer side of the driving housing 310 of the elevation driving portion, A support leg 212 formed of a rectangular tube and a support leg 212 formed between the support leg 212 and the support leg 212 and a connection leg 213 formed of a square pipe, A leg cap 214 coupled to an upper end of the connecting leg 213 and a lubrication pad 215 provided on an outer surface of a lower end of the connecting leg 213;
The lifting and lowering driving unit includes a driving housing 310 hinged to the outermost side of the leg frame 112, a lifting motor 320 fixed to the driving housing 310, And an upper end of the lifting screw shaft 340 is connected to the lifting screw shaft 340. The upper end of the lifting screw shaft 340 is fixed to the lower end of the connecting leg 213, The connection lifting nut rod 350 is coupled by the spline coupling means at the lower part of the connection lifting nut rod 350 and the upper end is screwed to the lifting screw shaft 340 and the lower end is fixed to the lower end of the support leg 212 And a supporting lifting nut rod (360) engaged with the support lifting nut rod (360);
The ascending socket portion 330 is coupled to the connecting angular shaft 341 formed at the upper end of the elevating screw shaft 340 and is coupled to the end of the connecting angular shaft 341 by a binding nut 341a And a resin socket groove (331) formed by a synthetic resin so that the socket angular axis (332) and the socket angular axis (332) can be vertically slidably engaged and absorbed by vibration;
The elevation control unit includes a controller housing 410 fixed to the desk frame 110, a power supply unit 420 provided in the controller housing, an elevation controller 430 for controlling operations of the elevation motor 320 of the elevation driving unit, A motor operation detecting unit 441 for detecting an operation amount of the motor 320 and an operation detection amount of the both side motor operation detecting unit 441 to compare the operation detection amount of the both side motor operation detecting unit 441 to the lift controller 430 during an unbalanced operation And an operation comparison unit (442) for inputting an operation stop signal.

The method of claim 1, further comprising:
The elevation drive unit driving housing 310 is formed in a rectangular box shape and both sides of the center side end of the working plate 120 are hinged to the leg frame 112 via hinge pins 312, Respectively,
The drive housing 310 is constrained to rotate about the hinge pin 312 by the restraining pin 313 that is coupled to the opposite side of the hinge pin 312 of the drive housing 310 at both sides of the leg frame 112, The frame 112 is coupled;
The hinge pin 312 and the restraining pin 313 are engaged with the leg frame 112 via the hinge buffer ring 312a and the restraint cushion ring 313a in order to reduce vibration during the operation of the lifting motor 320 Smart Desk.

3. The method of claim 2,
In the ascending and descending operation of the two side legs 210, the restraining pin 313 is provided with a pair of legs 210, And a torque cutting groove (313b).

The method of claim 1, further comprising:
The lifting screw shaft 340 is coupled to the lower end of the supporting lifting nut rod 360 to increase the rigidity of the supporting lifting nut rod 360 and to screw the lifting screw shaft 340 to improve the supporting rigidity of the lifting screw shaft 340 A supporting rod 342 is provided;
The ascending / descending linkage lifting and lowering nut rod 350 is formed of a hollow rod having a spline groove 371 formed on an inner surface thereof and is screwed to an elevating screw shaft 340 at an upper end thereof, And a connection rod fixing member 352 coupled to the lower end of the connection leg 213 is provided on the lower end outer surface of the connection lifting nut rod 350. The lower end of the connection rod fixing member 352 An inner wall support protrusion 352a is formed to support the gap between the outer surface of the lifting nut rod 360 and the inner wall support protrusion 352a;
The lifting and lowering supporting nut rod 360 is provided at its upper end with a supporting nut portion 361 which is screwed with an elevating screw shaft 340 to give a vertical force to the leg portion 210,
The support nut portion 361 is coupled by a spline coupling means at a lower portion of the connecting and lifting nut rod 350. The spline coupling means includes a spline projection 372 formed on an outer surface of the support nut portion 361, A spline groove 371 formed on the inner surface of the corresponding connecting lifting nut rod 350 is formed,
A support finishing cap 362 coupled to the support leg 212 is provided at the lower end of the support lifting nut rod 360,
The support finishing cap 362 is fitted in the lower end of the support lifting nut rod 360 and is provided with a finishing engagement protrusion 362a which is engaged with a binding hole formed in the support lifting nut rod 360, A finish claw 362b which is coupled to a key engagement hole formed at the center of the support claw 362 and which supports the finish claw 362a coupled to the binding claw so that the support finish cap 362 is firmly coupled, And the smart desk.

The method of claim 1, further comprising:
The elevation controller 430 of the elevation control unit controls the elevation motor 320 in accordance with the operation signal input from the operation unit and the operation of the elevation motor 320 according to the user's operation, A smart desk.